a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2*n-1)^2 = n*(4*n^2 - 1)/3.

Terms

a(0) =0a(1) =1a(2) =10a(3) =35a(4) =84a(5) =165a(6) =286a(7) =455a(8) =680a(9) =969a(10) =1330a(11) =1771a(12) =2300a(13) =2925a(14) =3654a(15) =4495a(16) =5456a(17) =6545a(18) =7770a(19) =9139a(20) =10660a(21) =12341a(22) =14190a(23) =16215a(24) =18424a(25) =20825a(26) =23426a(27) =26235a(28) =29260a(29) =32509